imaginary number multiplication

• Jun 9th 2010, 08:10 AM
math321
imaginary number multiplication
im try to post my eqaution but i want to no how to use the math tags
• Jun 9th 2010, 08:11 AM
Ackbeet
Go here for LaTeX help.
• Jun 9th 2010, 08:41 AM
math321
$
(\frac{1}{2} + \frac{\sqrt{2}}{2} i)^2
$
• Jun 9th 2010, 08:43 AM
Ackbeet
So the rules are the same as for regular multiplication. Foil it out. All you have to remember is that $i^{2}=-1$.